About: http://webisa.webdatacommons.org/261726296

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The basic structure is like this:subset(x, condition, select=c(var1, var2))where x is the original dataset you want to subset, condition is a condition on your rows, and select is the columns you want to keep.
http://www.w3.org/ns/prov#wasQuotedFrom	r-bloggers.com